Possible Ending for TFS.
Imagine if Clementine has to Dive in Front of a Bullet to save AJ, she survives but gets Paralyzed from the Waist down (Sort of like the Kenny death in Season 3 but better managed). She gets brought back to Ericson's and must choose between being put out of her misery now, or living the rest of her life in a wheelchair; giving the Player a Say in whether or not she goes out (Sort of like the Alternate timeline in LiS with Chloe being Paralyzed). In this way, she can still be in a DLC if she's alive so AJ can visit her and speak to her, but won't have much of a role. If not, she'll have a grave which AJ can visit from time to time.